package com.lewis.system.web.service;



import com.lewis.core.constant.Constants;
import com.lewis.core.constant.UserConstants;
import com.lewis.core.base.domain.entity.SysUser;
import com.lewis.core.base.domain.model.RegisterBody;
import com.lewis.core.utils.RedisUtil;
import com.lewis.core.exception.user.CaptchaException;
import com.lewis.core.exception.user.CaptchaExpireException;
import com.lewis.core.utils.MessageUtil;
import com.lewis.core.utils.SecurityUtil;


import com.lewis.system.manager.AsyncManager;
import com.lewis.system.manager.factory.AsyncFactory;
import com.lewis.system.service.ISysConfigService;
import com.lewis.system.service.ISysUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;

/**
 * 注册校验方法
 *
 * @author Lewis
 */
@Component
public class SysRegisterService {

	@Autowired
	private ISysUserService userService;

	@Autowired
	private ISysConfigService configService;

	@Autowired
	private RedisUtil redisUtil;

	/**
	 * 注册
	 */
	public String register(RegisterBody registerBody) {
		String msg = "", username = registerBody.getUsername(), password = registerBody.getPassword();

		boolean captchaOnOff = configService.selectCaptchaOnOff();
		// 验证码开关
		if (captchaOnOff) {
			validateCaptcha(username, registerBody.getCode(), registerBody.getUuid());
		}

		if (StringUtils.isEmpty(username)) {
			msg = "用户名不能为空";
		} else if (StringUtils.isEmpty(password)) {
			msg = "用户密码不能为空";
		} else if (username.length() < UserConstants.USERNAME_MIN_LENGTH
				|| username.length() > UserConstants.USERNAME_MAX_LENGTH) {
			msg = "账户长度必须在2到20个字符之间";
		} else if (password.length() < UserConstants.PASSWORD_MIN_LENGTH
				|| password.length() > UserConstants.PASSWORD_MAX_LENGTH) {
			msg = "密码长度必须在5到20个字符之间";
		} else if (UserConstants.NOT_UNIQUE.equals(userService.checkUserNameUnique(username))) {
			msg = "保存用户'" + username + "'失败，注册账号已存在";
		} else {
			SysUser sysUser = new SysUser();
			sysUser.setUserName(username);
			sysUser.setNickName(username);
			sysUser.setPassword(SecurityUtil.encryptPassword(registerBody.getPassword()));
			boolean regFlag = userService.registerUser(sysUser);
			if (!regFlag) {
				msg = "注册失败,请联系系统管理人员";
			} else {
				AsyncManager.me().execute(AsyncFactory.recordLoginInFor(username, Constants.REGISTER,
						MessageUtil.message("user.register.success")));
			}
		}
		return msg;
	}

	/**
	 * 校验验证码
	 *
	 * @param username 用户名
	 * @param code     验证码
	 * @param uuid     唯一标识
	 */
	public void validateCaptcha(String username, String code, String uuid) {
		String verifyKey = Constants.CAPTCHA_CODE_KEY + uuid;
		String captcha = redisUtil.getCacheObject(verifyKey);
		redisUtil.deleteObject(verifyKey);
		if (captcha == null) {
			throw new CaptchaExpireException();
		}
		if (!code.equalsIgnoreCase(captcha)) {
			throw new CaptchaException();
		}
	}
}